Dice thrower



m. as .1 92

1,519,405 a. L. JOHNSON DICE THROWEH FiLed May 22, 1925 FMUHE f2 INVENTOR ATTORNEY Patented Dec. 3163 1924.

UNITE S CHARLES L. JDH'NSON, OF SAN 365E, CALIFORNIA.

DICE THROW Application filed May 22, 1923. Serial No. Gfif/lfl.

To all whom it may concern:

Be it known that I, Cnantns L. JonNsoN, a citizen of the United. States, and residing at San Jose, in the county of Santa Clara and State of California. have invented certain new and useful improvements in Dice Throwers, which the following is a specitication.

lt is one object of my invention to provide a mechanical device for throwing dice.

it is another object of my invention to provide a device of the character indicated for preventing the scattering of the dice when thrown.

it is still. another object of my invention to provide a device of the character indicated wherein the dice are arranged in a closed transparent compartment and their positions taken at random after the device has been rotated and allowed to come to rest.

In the drawing:

Figure l is a side elevation of the device.

Figure 2 is a section on line 2-2 of Figure 1.

Figure 3 is a section on line 3 3 of Fig ure 1.

Referring more particularly to the drawing, 1 indicates a chamber having transparent walls arrangech preferably, in the form of a rectangle whereby flat interior surfaces are secured as at 'lhe top of chantiber l is provided with an opening l fitted with a screw-cap 5.

The bottom of the chamber 1 slopes downwardly and inwardly as at 6 to a recess 7 formed in the lowermost portion. The outer surface of the bottom of the chamber is conical in shape and terminates in a round ed point 8. At 9 9 are two dice placed within the chamber and free to tumble about therein.

in use the device is grasped in the lingers by its cap 5 and rotated like a top on its point 8. When the velocity of its rotation lessens sufficiently for it to become overbalanced it falls upon one side thereby throwing the dice )9 about in compartment 1. As the device comes to a rest on one side the dice also come to rest on that side. the indicia on their upper faces being easily read through the transparent side walls 2.

The recess 7 is provided at the bottom of the inclined. surface 6 so that when the device is in an erect position for spinning the dice will naturally fall to the lowest point which is in the center, thereby mantaining the center of gravity more nearly in the line of the axis of rotation of the device when it is spinning and consequently securing to it a uniform motion.

It is to be understood of course, that while i have herein shown and described but one specific embodiment of my invention, changes in form, size proportions, materials, method of construction. and mode of operation may be made within the scope of the appended claims.

I claim l. A device of the character indicated consisting of a hollow spinning top having transparent side walls forming a multisided chamber, said chamber having its bottom sloping from its side walls downwardly and inwardly toward the center of the chambeiu. and one or more dice enclosed within said chan'iber and normally actuated to the center thereof by said sloping bottom when said top assumes a vertical position.

A device of the character indicated comprising a hollow spinning top having transparent side walls forming a multisided chamber. said chamber having its bottom sloping from its side walls downwardly and inwardly toward the center of the chamber. a recess formed in the bottom thereof and conin'uuiicating with said. sloping bottom. and adapted to receive one or more dice. and one or more dice enclosed within said chamher.

3. A device of the character indicated comprising a hollow spinning top having transparent side walls and forming a dice chamber, said chamber having its bottom sloping from its side walls downwardly and inwardly toward the center of the chamber. and one or more dice enclosed within said chamber and normally actuated to the center thereof by said sloping bottom when said top assumes a vertical position.

4. A device of the character indicated comprising a hollow spinning top having flat interior side wall surfaces and having transparent side walls enclosing a single chamber and formed to rotate about a vertical axis, and one or more freely tumbling dice positioned within said chamber and visible through said Walls.

CHARLES L. JOHNSON. 

